We've given this a lot of thought and in fact almost had a combo installed in our 32 RCTS when we were at Lazy Days last Jan...but after reading lots of comments on this forum and after studying the Spledid owners manual, we decided against it. We think the washer is fine but too many negative comments about drying time and wrinkles. Many told us they would only partially dry, then hand up to finish.
We thought about just getting the washer, but then we decided to buy a less expensive (and smaller) washer we'd seen at Menards. (Haier HLP21N) It only cost $250 and because it's smaller were able to keep some shelf space plus room for a hamper. The capacity is about 1/2 to 2/3 of the Splendid depending how you load it. I did have to build a water mixing manifold because the washer doesn't have water temp control. We've used it on 3 or 4 trips and so far, we are very happy with our decision.
Here are a few pics of the project.